Defeat the first wave of combat planes.

Achievement Guide for Adventure is Out There

Achievement won on 28 Apr 10TA Score for this game: 1,137
Posted on 25 December 10 at 03:24

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This achievement will come with natural story progression and cannot be missed.

During the first level of the game you'll play what you'll find to be the ending of the game, this level is incredibly easy, you just need to shoot down 4 enemy fighter planes, once you've done that the screen will begin to fade and the achievement will unlock.

I've linked in a video showing you this, it also continues on to the second level.